Evaluations of a 4G Uplink System Based on Adaptive Single-Carrier TDMA
Paper in proceedings, 2005

© 2005 IEEE. Recent research has shown that a single-carrier system with frequency domain equalization can be a potential alternative to an OFDM-based system in a single user case. In this paper we propose and evaluate an adaptive single-carrier TDMA uplink with scheduling for broadband cellular packet data systems. Frequency division duplex (FDD) is assumed. Multiuser channel estimation and channel prediction are considered. The adaptive modulation scheme is optimized to maximize the throughput including also the ARQ part of the transmission. Frequency domain equalization is employed to combat the inter-symbol-interference (ISI). With the proposed design, the simulation results show that the multiuser diversity gain in spectral efficiency is limited in a wideband system, which indicates that an OFDM based system might be a more favorable candidate.

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Author

Wei Wang

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Tony Ottosson Gadd

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Tommy Svensson

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Arne Svensson

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Mikael Sternad

Uppsala University

Proceedings IEEE Vehicular Technology Conference Fall, Dallas, Texas, USA

1550-2252 (ISSN)

1667-1671

Areas of Advance

Information and Communication Technology

Subject Categories

Computer and Information Science

DOI

10.1109/VETECF.2005.1558225

ISBN

0780391527

More information

Latest update

2/28/2018